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View Full Version : Knoxville's Heads 'n Cam Swap Build Thread

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Knoxville
08-20-2013, 03:02 PM
What UD did you go with? ARP, Powerbond, SLP?

Coming along well - time for a new intake mani too!

I went with the SLP Underdrive.

I already have a Rick Crawford ported intake manifold. It actually was flow tested, dyno tested, and track tested against the FAST 102 and yielded better results.

He does something more than just porting the size of the manifolds, he builds some sort of structure on the inside that helps the air tumble more efficiently.
Murlo26
08-20-2013, 03:46 PM
LOL, I still don't buy that his intake mani is better, I think he blowing hot air at you.

I am sure its better than stock and for the price/performance factor it probably makes more sense. But hard to argue with every other LS platform out there that has awesome results with the FAST.
asshanson
08-20-2013, 03:53 PM
The stock LS3 and LS7 intakes are actually quite good compared to the old LS2/6 manifolds, especially when ported they can keep up with a Fast 102. Not sure which one Knoxville started out with though.
Murlo26
08-20-2013, 03:56 PM
Well maybe I stand corrected ;)

I just have a hard time believing the guy selling the stuff, of course he will talk it up, he needs to make money.
Knoxville
08-20-2013, 04:20 PM
Take a look at Crawfords facebook page and search for "Let the games begin! Ported FAST 102 .vs Rick Crawford AirRam L76." Read the comments for flow test results:
https://www.facebook.com/RickCrawfordRacing?hc_location=timeline

For more information about Rick Crawfords ported Intake Manifold and many success stories:
http://g8nation.com/showthread.php?t=30615

Many people in the G8 community have seen gains with Rick Crawfords Airram Manifold. He is not just blowing "Hot air" at us. As you can see here he picked up gains on the dyno of an already typically ported intake manifold, and this test was done independently of Rick (search for "Rick Crawford Intake manifold ported results"):
https://www.facebook.com/pages/New-Era-Performance/392922230272

The FAST 102 costs over twice as much, weighs much more than the stock manifold, and hasn't yield gains that are worth it to me.
goodhart
08-20-2013, 11:29 PM
Well maybe I stand corrected ;)

I just have a hard time believing the guy selling the stuff, of course he will talk it up, he needs to make money.

Huh. Sounds like every parts maker out there to me. ;)
Knoxville
08-28-2013, 10:39 PM
I'm getting excited for the new beef
JohnnyT
09-04-2013, 11:06 AM
The stock LS3 and LS7 intakes are actually quite good compared to the old LS2/6 manifolds, especially when ported they can keep up with a Fast 102. Not sure which one Knoxville started out with though.

The LS6 is actually pretty damn good. Most claim you'll outflow the 243 heads before the mani. The LS1 and 2 are complete junk though.

Get everything wrapped up yet, Knox?
Murlo26
09-04-2013, 02:40 PM
He is out of town right now, i think this weekend he is targeting to finish it up.
Knoxville
09-07-2013, 09:38 AM
Just got home from a business trip yesterday. Picked up my new Rick Crawford heads and started working on the car. Made some progress, and this beast is getting closer to completion. Really looking forward to this first startup.

New Rick Crawford Heads:
http://i.imgur.com/fsFsd2Mh.jpg
http://i.imgur.com/heqNuz1h.jpg

Installed heads, pushrods, rocker arms, headers, under drive pulley, power steering pump:
http://i.imgur.com/wJJHwVrh.jpg